"I can feel them, but I can't remember them" makes no sense

How can he 'feel them', but 'not remember them', when the movie already SHOWED us him remembering them?

What were those flashbacks, where he CLEARLY remembers them well enough to even get angry enough to smash the display device/monitor when walking in his former house?

'Can you do that, dad?', 'I really need to tell you something' and all those flashbacks - WHAT were those things, if not memories? What WAS that, if not him remembering them?

Why show us him remember them, and then have him say he can't remember them? Did he erase his own memory somehow? Did he lose those memories at some point without the movie telling us this happened?

Either way, it makes no sense.

Wouldn't it make more sense for him to 'remember them, but not feel them'? I mean, that would be even more 'tragic', because he has lost the feel, and only retains the visual/aural memory?

Also, being a 'robot' now, it would fit so perfectly. But no, somehow we are supposed to think he's still a human being, just in a robotic body, so he can still feel them - but somehow not remember them, although we just SAW him remember them..??

I mean, if he's a human being, how can they just 'blank' his memory? You can 'blank' a tape or erase data, but you can't just 'blank' a human memory, as it's not even physical. So how did they do this 'blanking' thing? Wouldn't THAT be revolutionary technology, as shown in 'Men in Black', if you could just 'blank' people's memories?

If he's a ROBOT, however, then this 'blanking of memory' would make perfect sense. If they had made him 'not feel, but remember bits and pieces' (thus the human side would still retain some scraps of memories they couldn't 'blank'), then everything would make so much more sense.

As it is now, it makes no sense.